Chika has been married to her husband for over 15 years and has been living a sexless life for over three years. One day, I was not blessed with children, and I felt a little lonely every day, just going back and forth between my home and part-time job. He meets a man named Osawa who has moved next to him. Chika says with a serious look on Osawa, "I'm attending a prep school while celebrating my way to becoming a lawyer," and feels a crush on her. And then, after a certain incident, the two end up having a relationship...